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Processing method and concentricity measuring tool for coaxial hole of diesel engine oil supply unit casing

A technology of an oil supply unit and a processing method, which is applied in the direction of manufacturing tools, metal processing equipment, measuring/indicating equipment, etc., can solve the problems of complicated operation, high cost, and high price, and achieve simple operation, low manufacturing cost, and easy to use convenient effect

Active Publication Date: 2013-10-30
KUNSHAN JIANGJIN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two detection methods: the first needs to generate very expensive expenses, and the purchase of three-coordinate detection equipment is even more expensive; the second operation is relatively complicated

Method used

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  • Processing method and concentricity measuring tool for coaxial hole of diesel engine oil supply unit casing
  • Processing method and concentricity measuring tool for coaxial hole of diesel engine oil supply unit casing
  • Processing method and concentricity measuring tool for coaxial hole of diesel engine oil supply unit casing

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Experimental program
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Effect test

Embodiment

[0032] Step 1: First, adjust the distance between the tailstock and the main shaft to 3400mm;

[0033] Step 2: Place the workpiece in the middle of the workbench and install and press it tightly. The longitudinal stroke is 1600mm;

[0034] Step 3: Fix one end of the boring bar to the main shaft, install the other end of the boring bar in the tailstock bearing bush, and then adjust the center height of the boring bar. There are first and second slots for installing boring tools on the boring bar. The tool is loaded into the first tool slot of the boring row against the main shaft of the machine tool;

[0035] Step 4: The workbench moves longitudinally, the boring tool in the first slit is rough-bored close to the first three holes of the machine tool spindle to Φ194±0.2, and the center distance is controlled. Then, the workbench is reset, and the machine tool spindle and workpiece do not move;

[0036] Step 5: Put the lever dial indicator into the second slot of the boring row...

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Abstract

The invention discloses a processing method and a concentricity measuring tool for a coaxial hole of a diesel engine oil supply unit casing. The processing method comprises the steps of first adjusting the distance between a tailstock and a spindle; fixing a workpiece; installing and adjusting a boring machine, and installing a boring cutter in a first cutter groove; boring first three holes close to the machine tool spindle, enabling a working table to return, and enabling the machine tool spindle and the workpiece to be immobile; installing a lever indicator in a second cutter groove to detect the first three bored holes; installing the boring cutter in the second cutter groove to bore last three holes far away from the machine tool spindle; assembling the concentricity measuring tool in the coaxial hole of the diesel engine oil supply unit casing, and installing lever indicators to respectively detect circular run-out degrees of a first hole, a second hole, a third hole, a fourth hole, a fifth hole and a sixth hole. Processing of the six holes can be finished rapidly, concentricity errors can be measured rapidly by using the concentricity measuring tool, and the concentricity measuring tool is convenient to use, low in manufacturing cost and simple to operate and has accuracy in measurement.

Description

technical field [0001] The invention relates to a processing method for a coaxial hole and a measuring tool used therefor, in particular to a processing method for a coaxial hole of a housing of an oil supply unit of a diesel engine and a measuring tool for coaxiality. Background technique [0002] Machining and measurement of the six mounting camshaft holes in the oil supply unit shell of the key unit and important part of the WARTSILA RT-FLEX electronically controlled intelligent diesel engine injection system. First of all, the outer dimension of the shell is 2084mmX1210.5mmX540mm, the axial distance of the six holes to be processed is about 1947mm, the inner diameter of the hole is ￠195mm, and the tolerance grade is grade six; [0003] For the coaxial machining of the housing hole of the traditional diesel engine oil supply unit, due to the relatively long axial distance of the hole, the spindle of the machine tool needs to be extended almost to the limit size, and an ex...

Claims

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Application Information

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IPC IPC(8): B23B35/00B23Q17/20
Inventor 张明红张海陈峰
Owner KUNSHAN JIANGJIN MACHINERY
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